31816823998103 has 2 divisors, whose sum is σ = 31816823998104. Its totient is φ = 31816823998102.

The previous prime is 31816823998049. The next prime is 31816823998207. The reversal of 31816823998103 is 30189932861813.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31816823998103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31816823997103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15908411999051 + 15908411999052.

It is an arithmetic number, because the mean of its divisors is an integer number (15908411999052).

Almost surely, 2^{31816823998103} is an apocalyptic number.

31816823998103 is a deficient number, since it is larger than the sum of its proper divisors (1).

31816823998103 is an equidigital number, since it uses as much as digits as its factorization.

31816823998103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13436928, while the sum is 62.

The spelling of 31816823998103 in words is "thirty-one trillion, eight hundred sixteen billion, eight hundred twenty-three million, nine hundred ninety-eight thousand, one hundred three".